The PIC16F1777 is the wide-analogue member of the 177x family in a 40/44-pin body: 14 KB of flash, 1024 bytes of SRAM, thirty-six I/O lines, four op amps, eight high-speed comparators, a twenty-eight-channel 10-bit ADC, four of each DAC flavour and four programmable ramp generators – the complete closed-loop array at its widest. Products that multiplex several power stages or sensor banks through one controller land here. When protection is engaged, our dump encrypted PIC16F1777 chip service recovers the image from hardware you own.

Four loops demand four-sided proof

At this peripheral count a product usually runs several internal loops at once, each with its own comparator trip points, ramp slopes and op-amp gains configured from flash constants. Verifying a clone therefore means sampling each loop, not averaging them: our bench fixture exercises every comparator and COG output channel against the donor under load, because experience shows that a mismatch usually hides in exactly one of the four – the one that only misbehaves under the condition the test happened to skip. The dump encrypted PIC16F1777 chip capture follows the family discipline: configuration words read first to map which regions protection closed, then every answerable region captured in its protected state in a single pass with per-sector checksums, re-read until two passes agree. The bulk erase that would clear protection destroys the array and is permanently excluded. The forty-pin TQFP is comfortable to handle, but the twenty-eight-channel scan table is exactly the kind of structure that partial captures mangle, so the report itemises it. Lawful-access framing is in the unlock microcontroller embedded memory guide, and the internal-layout reasoning in the microcontroller internal storage structure analysis reference.

The twenty-eight-channel scan table is the structural centrepiece of most images on this part, and it rewards a specific capture discipline. Channels are grouped into sequencer slots whose ordering encodes the product’s sampling architecture – which sensors share a conversion window, which are oversampled, which feed averaging accumulators in the ADC’s computation logic. Our report reconstructs that table from the captured constants and prints it next to the raw heximal, because an engineer retargeting the product for a new sensor layout needs the grouping, not just the bytes. On multi-loop supplies the same table usually reveals which loop samples during which phase of the switching period – information the schematic alone never shows.

Handling note for the 40-pin tier: several products in this package multiplex ADC channels across two board connectors, so the donor must be captured with its channel-scan configuration intact rather than inferred from the schematic. Where a customer can send the board itself, we record the powered-state register set as a cross-check against the flash constants; disagreement between the two has twice revealed that a field update had reconfigured scanning without a matching firmware note – exactly the kind of undocumented drift a recovery exists to surface.

Duplication and delivery

Verified images are programmed into matching 40/44-pin blanks with configuration words restored, through the MCU flash EEPROM data cloning pipeline with read-back comparison on every unit. Larger analysis work is framed in the MCU reverse engineering concept article.

Sequencer arbitration is where the scan table becomes three-dimensional on this part: multiple conversion triggers compete for the ADC, and priority and round-robin settings decide who wins when two loops want the same slot. Those arbitration registers are constants like the rest, and their effect is invisible in any single conversion – it only appears as timing jitter across a burst. Our verification therefore records conversion timestamps across bursts on both units and compares the distributions, which is the test that has surfaced arbitration mismatches the register values alone never showed.

Family links

The 28-pin members are on the PIC16F1773 binary and PIC16F1776 MCU pages, the 28 KB 28-pin sibling on the PIC16F1778 source code recovery, and the 171x wide-ADC predecessor on the PIC16F1719 flash page.

Scope

We accept only units you own or are authorised to service. Send the locked PIC16F1777 and we will confirm the package, quote a fixed fee, and return a verified dump with per-loop validation notes.